Allow the user to specify a zero MAC address for VFs. This removes the
existing MAC address and allows the VF to use a random address. Libvirt
does this normally when removing a VF from a VM.
Signed-off-by: NMitch Williams <mitch.a.williams@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>